#include <iostream>
#include <algorithm>
using namespace std;

int main(){
   int average = 0,n,k;
   cin >> n >> k;
   int N[n];
   for(int i = 0;i < n;i++) cin >> N[i];
   stable_sort(N,N + n);
   for(int i = n - 1;i > 1;i--) average += N[i];
   average /= n - 2;
   cout << average - N[0] << endl;
}